<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    class Person{

    }

    let me = new Person();

    console.log(me);

    console.dir(Person);

    let a = 100;
    let b = a++
    console.log(b);
  </script>
</body>
</html>